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S&M605 Research Paper of Special Issue Published: 2005 Fabrication of a High Temperature Silicon Pressure Sensor Using SDB-SOI Technology [PDF] Young-Tae Lee, Hidekuni Takao and Makoto Ishida (Received August 23, 2004; Accepted December 13, 2004) Keywords: Pressure sensor, Piezoresistive, SOI, High temperature
A high-temperature pressure sensor using SOI structures formed by silicon-direct- bonding (SDB) technology has been developed. This sensor consists of a thin square diaphragm and a single-element four-terminal piezoresistor produced by MEMS technol- ogy by a standard IC process. The diaphragm sizes are 70070040 m3 (D700), 1700170040 m3 (D1700), 2200220040 m3 (D2200) and the thickness of the diaphragm is 40 m. The pressure sensitivity of the fabricated sensor was 16.6 V/V.kPa (D700), 95.6 V/V.kPa (D1700) and 183.6 V/V.kPa (D2200) for the 100 kPa full-scale pressure range. A sensitivity shift of less than 0.097%FS/C was obtained in the tempera- ture range between +20C and +370C.
Corresponding author: Young-Tae LeeCite this article Young-Tae Lee, Hidekuni Takao and Makoto Ishida, Fabrication of a High Temperature Silicon Pressure Sensor Using SDB-SOI Technology, Sens. Mater., Vol. 17, No. 5, 2005, p. 269-276. |